baber/WOPTO huggingface dataset:
Patent GB-957368-A (GB)
Title: Improved polypropylene composition
IPC: C08L23/12
Filed: 1962-07-02
Abstract: A major proportion of polypropylene is blended with, e.g 2-40%, of a stereospecific linear polymeric butadiene elastomer containing 30-60% of the butadiene linkages as cis 1, 4 and having a Mooney viscosity of 1-140 at 100 DEG C. The butadiene may contain 40-70% trans 1, 4 linkages and up to 10% vinyl linkages.  The polypropylene may have a molecular weight of 5,000-500,000.  The compositions may be used to form articles.
Patent GB-649489-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B61G9/24
Filed: 1948-09-28
Abstract: 649,489. Railway vehicle underframes. BUDD CO. Sept. 28, 1948, No. 25232. Convention date, Oct. 24, 1947. [Class 103(vi)] An end underframe has a centre sill structure comprising two Z-section profiles 26 having their webs vertical and transversely spaced and the upper arms 29 directed toward each other and meeting at the bolster beam 21, thereby forming a hollow section to telescope in the main centre sill 16. The space between the profiles 26 houses the draft-gear 40 and connected between the profiles 26 and the buffer units 45 are diagonal braces 41 which transmit the buffing forces to the centre sill structure.
Patent GB-1452258-A (GB)
Title: Production of hydroxyacetic acid
IPC: C07C51/12
Filed: 1975-06-12
Abstract: 1452258 Hydroxyacetic acid CHEVRON RESEARCH CO 12 June 1975 [19 June 1974 29 April 1975] 25275/75 Heading C2C Hydroxyacetic acid is prepared by reacting carbon monoxide and formaldehyde in the presence of hydrogen fluoride as catalyst, at a temperature from 0-100‹ C., and a carbon monoxide partial pressure of 10 to 4000 psig. Water is present to increase the ratio of glycolic acid to oxydiacetic acid in the product and borofluoric acid may be present in the catalyst.
Patent GB-1259854-A (GB)
Title: Magnetic tape cassette player apparatus
IPC: G11B15/18
Filed: 1969-05-19
Abstract: 1,259,854. Cassette machines. R.C.A. CORPORATION. 19 May, 1969 [21 May, 1968], No. 25383/69. Heading G5R. In a twin reel cassette machine, the supply reel spindle 18 carries a friction pad 48 pressed by a spring and plate 50 against the turntable 22 so as to rotate as a unit during rewind, but the plate is engageable by a lug 60 on a head and pinch roller carrier 46 to provide back tension on the turntable during recording or playback. The turntables are driven for fast-reeling by a movable roller 26.
Patent GB-1180648-A (GB)
Title: Process for Oxidizing Tellurium
IPC: C25D11/00
Filed: 1967-06-01
Abstract: 1,180,648. Semi-conductor devices. THOMSON-CSF. 1 June, 1967 [3 June, 1966], No. 25447/67. Heading H1K. [Also in Division C7] A tellurium body is anodized in an electrolyte comprising a mixture of a non-aqueous solvent (e.g. pyridine) saturated with TeO 2  and of water, the proportion of water (e.g. 1% by weight) being such that the oxide film produced is non-porous. The Figure (not shown) illustrates oxidation of a Te plate (1) held in a Ta jaw arrangement (2) and immersed in an electrolyte (3). The jaw and plate are connected as anode and a Pt electrode (5) as cathode. Oxide coatings are formed on both the jaw and plate. Oxidation is at a constant current below or equal to 1 mA./cm.<SP>2</SP> of oxidizable surface until a pre-set voltage corresponding to the desired oxide thickness is reached. The process can be used in the manufacture of semi-conductor devices. The tellurium oxide film produced can be used, either to protect the surface of a finished device or in the control electrode of an IGFET.
Patent GB-647499-A (GB)
Title: Direction indicator for road vehicles
IPC: B60Q1/38
Filed: 1947-09-19
Abstract: 647,499. Road traffic signals on vehicles. BENGTSSON, S. W. Sept. 19, 1947, No. 25581. Convention date, Sept. 23, 1946. [Class 118 (ii)] A vehicle direction-indicator comprises two spaced lamps in a common holder and a circuit arrangement whereby a left or right-hand turn may be indicated by a steady light from one lamp in conjunction with a flashing light from the other. Provision is also made to light or flash both lamps together to indicate a stop. The two lamps 12, 13 are mounted in a conspicuous position on the vehicle and are connected in a circuit comprising a three-position manual switch A and a thermally-operated automatic flasher switch B. The circuit arrangement is such that, when switch B is thrown to the right, contacts 80, 37, 81 and 82, 38, 83 are made and lamp 13 is connected to source 20 through flasher switch B and lamp 12 is connected direct to the source, the steady light from 12 in conjunction with the flashing light from 13 thereby indicating a right turn. The reverse conditions are established by throwing switch B to the left. If switch B is thrown to the lower position contacts 84, 85 and 86 are closed through contact 39 and both lamps light steadily to indicate a stop. This last condition is also obtained upon operation of the foot brake which closes contacts 121, 122, 123 through contact 120. If desired, the circuit may be adapted to include the flasher switch for the stop signal. Tell-tale lamps in series with lamps 12 and 13 may be provided on the instrument board. Specification 588,619 is referred to.
Patent GB-829827-A (GB)
Title: Improvements in or relating to self-viewing apparatus
IPC: G02B23/00
Filed: 1956-08-22
Abstract: 829,827. Optical apparatus. SCOTT, D. Aug. 22, 1956 [Aug. 30, 1955], No. 25631/56. Class 97(1) A self viewing apparatus comprises a housing, a partially reflecting mirror at the front of the housing for providing a virtual image of a subject, means for locating the image of an article to be worn by the subject in the zone of the virtual image of the subject and means for illuminating the image of the article. As shown, a subject S stands before a housing 10 having a partially silvered curved mirror 25. A slide 31 carrying the image of an article of adornment is illuminated by a lamp 37, and an image of the article is projected by lenses 44 and 55 to the apparent plane of the virtual image of S formed by the mirror 25. The lens 44 serves to vary the size of the projected image, the colour of which may be varied by filters at 50. The position of S is correctly located with respect to the mirror 25 by coincidence of beams from lamps 56. A modification comprises a double-convex partially silvered lens, and the images are combined on a diffuse screen. An inclined plate re- Sects part of the beam to an outside observer.
Patent GB-256425-A (GB)
Abstract: 256,425. White, A.E., (Remington Arms Co., Inc.). Sept. 29, 1925. Platen-impression arrangements. - In a cashregister or like machine having a platen coupled to the driving-mechanism by a latch which is releasable so that the platen can be raised to give access to the type-wheels &c., means such as a spring is provided for automatically raising the platen on release of the latch, and the latch is preferably arranged to slide on the pivotal axis of the platen. As applied to the arrangement described in Specification 157,824 and comprising a platen 50 secured to arms 76, 77 on a shaft 49, the platan-operating arm 79 is secured to a latch 86 which can slide on the shaft and has a notch 861 normally engaging a rib 87 on the arm 77, engagement being maintained by a spring. On moving the latch to the right by means of a finger-piece 90 the platen is released and is raised by a spring blade 89 which engages the arm 77. The platen is retained in the desired position by frictional engagement of the latch and rib, and on depression of the platen the latch and rib automatically re-engage. The platen may be associated with the web-feeding arrangements described in the above-mentioned Specification. Specifications 135,465. 140,363, 157,823, and 157,825, [all in Class 106 (i), Calculating &c.], also are referred to.
Patent GB-625124-A (GB)
Title: Improvements in and relating to variable speed chain drives
IPC: F16H9/24
Filed: 1946-08-27
Abstract: 625,124. Expanding wheel gearing. STEINER, M. Aug. 27, 1946, No. 25684. Convention date, Sept. 17, 1943. [Class 80 (ii)] An expanding chain wheel for a variable speed chain gear comprises a number of sprockets 5 mounted on a support 6 so as to be movable radially along guides 8, each sprocket being mounted so that its rotation in the direction of drive of the chain 3 is prevented. In the embodiment shown in Fig. 2, the spindles 12 of the sprockets are moved radially by rotation of a support 18 having non-radial slots 17 co-operating with the spindles 12, and the sprockets 5 are engageable with the spindles 12 through freewheels 14, the angular locking positions of which correspond to a multiple of the chain pitch. In a second embodiment, the invention is applied to the chain wheel of a bicycle in which case the support 18 is rotated by a pin and helical slot mechanism within the bottom bracket. In this embodiment the sprockets are rigid with pinions engaging racks on the support 6, so that the sprockets are held' in both directions of rotation, but rotate the correct amount to compensate for chain pitch whcn moved radially, the pinions being of different sizes to rotate the sprockets through different multiples of the chain pitch.
Patent GB-1341639-A (GB)
Title: Liquid-applying devices
IPC: G01N1/28
Filed: 1971-04-19
Abstract: 1341639 Application of samples to thin layer plates INSTRUMENTA AB 19 April 1971 [13 April 1970] 25861/71 Heading B1X A device which linearly applies sample liquid to thin layer chromatographic plates, e.g. silica gel coated glass, comprises a dosing means, e.g. a pipette 2, Fig. 1A, supported on a bracket 5, pivotally mounted on a shaft 6, journalled in a carriage 9 which is moved horizontally on bars 11 by means of a motor 30. At the end of an application the pipette 2 is caused to pivot upwardly about the shaft 6 in response to the abutment of an arm 14, mounted on the shaft 6, with a stop 15. The carriage 9 then travels in the reverse direction. The abutment of arm 14 and stop 15 causes a pin 23, Fig. 2, on the upper part of arm 14 to draw a slidable magnet 24 to its extreme right end position and the carriage travels in the reverse direction until the magnet abuts stop 45, Fig. 1A. The carriage is reversed again and the attraction between the stop 45 and the magnet causes the magnet to be drawn to its extreme left end position along with the pin 23. This causes the arm 14 to pivot such that the pipette contacts the plate once again. The stop 45 and magnet are separated by the motion of the carriage. Abutment of microswitches 19, 20 with stops, e.g. 26, reverses the direction of the carriage 9 which may be operated at selected speeds and heights.
Patent GB-629441-A (GB)
Title: A process for the manufacture of an amino pyrido-imidazole
IPC: C07D471/04
Filed: 1947-09-23
Abstract: An amino pyrido-imidazole, either <FORM:0629441/IV (b)/1> or <FORM:0629441/IV (b)/2> is obtained by heating a salt of 2 : 3 : 4-triamino-pyridine with formaldehyde in the presence of copper acetate.  The product is isolated as the picrate, which may be converted into the hydrochloride and the free base.  2 : 3 : 4-Triamino-pyridine may be obtained by the method of Specification 629,439.  According to the Provisional Specification, any copper salt may be used in place of the acetate.
Patent GB-602020-A (GB)
Title: Improvements in variable speed hydraulic transmission devices
IPC: F16H61/14
Filed: 1945-10-04
Abstract: 602,020. Friction clutches reversing gear. FORD MOTOR CO., Ltd. Oct. 4, 1945, No. 25886. Convention date, Jan. 26. Class 80 (ii)] [Also in Group XXIX] In a hydraulic torque converter a friction clutch 19 carrying a spring-loaded valve 20 is secured to the runner 15. The valve controls a passage admitting fluid between the clutch surface and the fly-wheel 14 of the impeller 13, said passage being in communication with a passage in the fly-wheel controlled by a spring- loaded valve 21. At a predetermined speed, centrifugal force causes the valve 20 to close, preventing flow of fluid, and the valve 21 to open, bleeding the cushioning fluid between the clutching surface and the fly-wheel so that the clutch engages to give direct drive. A conventional planetary gearing in the gear-box 12 provides a forward, a reverse, a neutral and a positive lock, and a band brake 31 is also provided.
Patent GB-326442-A (GB)
Title: Improvements in metal chairs, stools, tables and the like
IPC: A47C7/00
Filed: 1928-09-10
Abstract: 326,442. Saxelby, F. A. Sept. 10, 1928. Frames. - A metal chair, stool, table, or the like comprises a screwed vertical spindle 1 carried by two or more flat-sided nuts 2 which act as spacing members between the twin vertical parts 7 of legs 3 secured thereto. The legs are interlaced at their lower ends, and are bent downwardly and outwardly, in plan view in line with the faces of the nuts.
Patent GB-916957-A (GB)
Title: Electric remote control system
IPC: B61L5/06
Filed: 1961-07-18
Abstract: 916,957. Control of A.C. motors. SOC. TECHNIQUE POUR L'INDUSTRIE NOUVELLE S.A. July 18, 1961 [Aug. 31, 1960], No. 25944/61. Class 38 (3). [Also in Group XXX] In a system for controlling railway switch points M a relay 2 operates an alarm if the points are forced out of position (trailed), and it also takes part in starting the motor so that it is tested each time the points are operated. The motor has three-phase windings X, Y, Z connected in star by lines L1 . . . L3 for running but it is started on two phases only, windings Y and Z being connected in series, and a fourth line L4 being switched in by the relay 2. Change-over is effected by limit switches 11, 12 and 21, 22 which disconnect L4. At the completion of each run, in either direction, a D.C. supervisory current is established through the four lines and the motor windings, a high resistance device U, and one of two windings on relay 2. This current is insufficient to operate the relay unless the points are trailed, when U is short-circuited. In this event, the relay closes and, besides operating an alarm, prevents the motor being switched on until the trailing is corrected and the relay reset. An arrangement is described whereby resetting requires the use of a special key, which may also operate a counter. For normal starting, the relay closes upon operation of a starting relay 1 and is held on by current through its second winding. This second winding remains energized from a resistance/capacitance circuit D, C for a short time after the motor is energized, i.e. during the starting period, or in an alternative arrangement the second winding circuit includes a transformer, the primary of which is in series with the line L4; it is thus de-energized when the motor has started and L4 has been cut out by 11 or 21.
Patent GB-768461-A (GB)
Title: Improvements in electrical soldering irons
Inventor: LAMB HERBERT ERNEST
IPC: B23K3/03
Filed: 1954-09-07
Abstract: 768,461. Soldering. ADCOLA PRODUCTS, Ltd. Sept. 2, 1955 [Sept. 7, 1954], No. 25947/54. Class 83 (4). An electrical soldering iron has a metal sheath 6 of the shank interrupted by an axially extending air gap 7 formed between metal rings or washers 12, 13, secured together at a small number of small areas around their peripheries. The parts 10, 11 of the sheath are secured to the hexagonal washers 12, 13 respectively and a hexagonal washer 15 is deformed to engage alternately the washers 12, 13, being welded thereto at the points of engagement. According to the Provisional Specification the washers may be riveted together or may be crinkled or fluted so that corresponding flutes may be secured together. Each washer may be perforated adjacent the securing points. Specification 604,555, [Group XI], is referred to.
Patent GB-1218334-A (GB)
Title: Catalyst for the production of hydrogen cyanide
Inventor: BROWN PATRICK MICHAEL
IPC: C01C3/02
Filed: 1969-05-21
Abstract: 1,218,334. Hydrogen cyanide. W. R. GRACE & CO. 21 May, 1969 [28 Aug., 1968], No. 26036/69. Heading C1A. Hydrogen cyanaide is prepared by reacting ammonia and a saturated hydrocarbon, e.g. methane in the gas phase at an elevated temperature in the presence of, as catalyst, a refractory mullite base having a coating of platinum, the platinum content being from 0À01 to 2% by weight. An example describes the preparation of a synthetic mullite by intimately mixing solutions of sodium silicate, aluminium nitrate and sodium aluminate, spray drying the mixture, reducing the sodium content by ion-exchange and calcining. The mullite base is then impregnated with a solution of a platinum compound, e.g. chloroplatinic acid which is then reduced to the metal by heating in a hydrogen atmosphere.
Patent GB-708458-A (GB)
Title: Improvements relating to apparatus for forming capsules
IPC: A61J3/07
Filed: 1951-11-07
Abstract: 708,458. Delivery pipes for reciprocating pumps. AMERICAN CYANAMID CO. Nov. 7, 1951 [Nov. 16, 1950], No. 26056/51. Class 102 (1). [Also in Group V] In making capsules by forming pockets in a sheet of gelatine &c., filling the pockets and sealing them with another sheet, the filling is performed by nozzles which are initially inserted into the pockets beneath the upper edge of the pocket (Fig. 8), then discharge a measured amount of filler material into the pockets, and are then withdrawn (Fig. 11). As shown in Fig. 4 the pockets 79 are formed by sucking a sheet 28 of getlatine into cavities 36 in a rotating roll 21. The cavities 36 are arranged in circumferential and axial rows, as shown in Fig. 3, and there is one nozzle 62 for each circumferential row. The nozzles are in two sets A, B, which dip and rise alternately; when one set is lowered into an axial row of pockets 79 to fill it, the other set is raised and inactive. The nozzles are mounted for dipping on a fixed fulcrum pin 35, and are rocked about this pin by a cam 50, Fig. 1, acting through cam follower 49, crank 48, shaft 46, rocking beam 45, pull rods 42 and tongues 37, 38 extending from the rear of each nozzle. As each set of nozzles dips into an axial row of pockets 79 a measured quantity of material is delivered under pressure through pipes 33 and the nozzles into the pockets by means of pump pistons in a pump 32. When the nozzles rise the supply of material is cut off. Each nozzle includes a spring-urged ball valve 67.
Patent GB-359126-A (GB)
Title: Improvements in metal barrels and their manufacture
IPC: B65D25/20
Filed: 1930-09-01
Abstract: 359,126. Metal barrels. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Aluminiumschweisswerk Akt.-Ges. ; Brandstrasse, Schlieren, near Zurich, Switzerland.) Sept. 1, 1930, No. 26102. [Class 21.] A metal barrel, preferably of aluminium alloy, constructed to facilitate cleaning in a machine of known type in which the barrel is first rolled about its axis on rollers until a spring pin enters the bunghole stops the rolling and starts the washing, is constructed of two or more parts a, b, welded at 5 to a thicker ring 1 threaded at 3 to take a bunghole bush 4, one or more circular zones 2 of channels nearly parallel to the axis being provided, to make efficient frictional contact with the rubber friction rollers of the washing machine. An opening is provided, e.g. in one of the ends, to allow bf insertion of tools for smoothing' the welded seams, the opening being afterwards closed by a plate 6, welded at 7. Tyres 8 are provided at the,ends so that in rolling the barrel rests on the tyres 8 and on the ring 1.
Patent GB-644639-A (GB)
Title: Improvements in or relating to magnetic materials
Inventor: MAYER SIMON ERNEST
IPC: G11B5/706
Filed: 1947-09-26
Abstract: 644,639. Magnetic dust structures. STANDARD TELEPHONES & CABLES, Ltd. Sept. 26, 1947, No. 26137. [Class 38 (ii)] A finely-divided magnetic material which has been so heat-treated that it possessss high magnetic saturation, high retentivity and high coercivity for use in the manufacture of magnetic recording tapes, consists of mixed crystals of oxides of metals in which at least one of the metals is chosen from the class producing divalent cations consisting of zinc, cadmium, manganese, magnesium, ferrous iron, nickel and cobalt, and another of the metals is chosen from the class producing trivalent cations, consisting of ferric iron, chromium and manganic manganese. In making a material comprising Ni, CO and Fe suitable weights of NiSO4.7H 2 O, CuSO4.7H 2 O and FeSO4.7H 2 O are dissolved in water which is evaporated by spraying into a stream of heated air, the resulting powder is collected on gauze, heated in an air stream in a furnace, ground, sieved and heat treated at 900‹ C. in an atmosphere of commercial nitrogen containing 10 per cent of C0 2  for 4 hours. The CO 2  stabilizes the small oxygen content of the commercial nitrogen. Salts other than nitrates may be used and zinc may take the place of the cobalt in such a process. Where oxalates are used the grinding may be omitted. A tape of or-. ganic material such as P.V.C. mixed with the magnetic material may be formed by extrusion, or a paper or P.V.C. tape may be coated with the material in a suitable vehicle such as cellulose acetate lacquer. Specification 596,875 is referred to.
Patent GB-862248-A (GB)
Title: Di-isopropylammonium salts of chloroacetic and chloropropionic acids
IPC: C07C51/41
Filed: 1959-07-30
Abstract: The invention comprises diisopropyl-ammonium salts of acetic and propionic acids which have been substituted by one, two or three chlorine atoms, the alpha-carbon atom of the acid being substituted by at most two chlorine atoms, and the preparation thereof by reacting equimolecular proportions of di-isopropylamine with the appropriate acid.ALSO:Pharmaceutical compositions suitable for parenteral or enteral administration contain a di-isopropyl-ammonium salts of acetic or propionic acid containing one, two or three chlorine atoms, the alpha carbon of which contains at most two chlorine atoms.  For example, 25-50 mgm. of the salt may be dissolved in 2 c.c. of sterile water for parenteral administration or included in a tablet of 260 mgm. weight for oral administration.
Patent GB-1459769-A (GB)
Title: Process and apparatus for the edge knurling of a thermoplastic web
IPC: B29C59/00
Filed: 1973-06-01
Abstract: 1459769 Finishing edges of non-metallic sheet material AGFA-GEVAERT 1 May 1974 [1 June 1973] 26249/73 Heading B5K [Also in Divisions B6 and G2] A thermoplastics web 10 is provided with knurled edges by means of a heated knurling wheel 15. The wheel may co-operate with a plain backing roller or with a further heated knurling wheel 14. In a first embodiment the wheel comprises a rim portion 30 connected to a hub 29 by spokes 31. Outside the rim and in close proximity thereto is arranged an arcuate heating shoe containing an electrical heating element connected to the electrical supply through terminals 45 and 46. The wheel 14 may be similarly constructed and heated. The wheel 15 is biased towards wheel 14 by means of a weighted arm 20 which acts on a pivoted shaft 19 connected to the wheel by arms 18 (and 28, Fig. 3). In a second embodiment, Fig. 5, the knurling wheel comprises a rim 60, a heat insulating ring 61 and a hub 62 rotatably journalled on shaft 65. Fixedly mounted on the shaft 65 is a ring-like heating member 72 provided with axial bores 73 containing heating cartridges and a thermostat 74. The rim is furnished with a knurling ledge 75 and a sleeve 76 of heatresistant low-friction polymeric material, e.g. Teflon (Registered Trade Mark). In either em-  bodiment the shafts upon which the wheels are journalled may be cooled. Both edges of the web may be knurled.